A facile and fast preparation of robust superhydrophobic brass mesh coated with Cu(OH)2 nanowires by pulse electrodeposition for continuous highly efficient oil/water separation

Zhang, Yonghui; Liu, Jiangwen; Ouyang, Ligeng; Zhang, Kai; Xie, Guie; Jiang, Sheng

doi:10.1016/j.colsurfa.2021.127968

Cited by 15 publications

(2 citation statements)

References 50 publications

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“…Finally, it was modified with a non-fluorinated 1-dodecanothiol ethanol solution to reduce the surface free energy and obtain a robust and excellent hydrophobic surface. The water contact angle can be up to 158 degrees [10].…”

Section: Electrodepositionmentioning

confidence: 99%

Natural Superhydrophobic Surfaces and Application

Wang

Kong

Zhou³

et al. 2022

J. Phys.: Conf. Ser.

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Superhydrophobicity refers to the phenomenon that the contact angle of various low surface tension water droplets on the solid surface is greater than 150°. Over the past few years, people have paid more attentions in the superhydrophobic surfaces’ design and application. The superhydrophobic surfaces are meaningful for basic research and various practical applications, such as self-cleaning, drag reduction, lubrication, and more. This paper summarizes the recent advances and developments in superhydrophobic surfaces systematically. Furthermore, in this work, the authors focus on the basic concepts of superhydrophobic surfaces and commonly used synthetic methods. Electrodeposition and electrospinning methods are mainly introduced. Finally, we also discuss the limitations and challenges encountered in the study of superhydrophobicity, mainly with regard to the fact that drag should be reduced to improve energy harvesting efficiency.

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Section: Electrodepositionmentioning

confidence: 99%

Natural Superhydrophobic Surfaces and Application

Wang

Kong

Zhou³

et al. 2022

J. Phys.: Conf. Ser.

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“…In recent decades, pulsed laser processing using either an ultra-fast pulsed laser [ 22 ] or a nanosecond pulsed laser [ 23 , 24 , 25 , 26 , 27 ] has emerged as an alternative option for the fabrication of oil–water separation materials owing to its distinct advantages, including non-contact, ease of control, high process flexibility and selectivity [ 28 , 29 , 30 , 31 ]. A pulsed laser beam can precisely and efficiently construct micro/nanostructures on porous membranes including metallic mesh and foam.…”

Section: Introductionmentioning

confidence: 99%

Laser-Heat Surface Treatment of Superwetting Copper Foam for Efficient Oil–Water Separation

et al. 2023

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Oil pollution in the ocean has been a great threaten to human health and the ecological environment, which has raised global concern. Therefore, it is of vital importance to develop simple and efficient techniques for oil–water separation. In this work, a facile and low-cost laser-heat surface treatment method was employed to fabricate superwetting copper (Cu) foam. Nanosecond laser surface texturing was first utilized to generate micro/nanostructures on the skeleton of Cu foam, which would exhibit superhydrophilicity/superoleophilicity. Subsequently, a post-process heat treatment would reduce the surface energy, thus altering the surface chemistry and the surface wettability would be converted to superhydrophobicity/superoleophilicity. With the opposite extreme wetting scenarios in terms of water and oil, the laser-heat treated Cu foam can be applied for oil–water separation and showed high separation efficiency and repeatability. This method can provide a simple and convenient avenue for oil–water separation.

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Bio‐degradable fibrous membranes for oil/water separation by melt electrospinning

Li,

Zhang,

et al. 2024

J of Applied Polymer Sci

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Various electrospun fibrous membranes have been addressed for oil/water separation owing to their advantages of high specific surface ratio, lightweight, and high porosity. However, they are commonly obtained by solution electrospinning of non‐green raw materials, which could cause serious environmental issues. To realize effective oil/water separation, the optimal processing parameters for melt electrospun polylactic acid (PLA) were determined through orthogonal experiments. Subsequently, PLA fibrous films with cellulose nanofiber (CNF) or sodium chloride (NaCl) for oil/water separation were produced via melt electrospinning. The effects of incorporating CNF or NaCl on the physiochemical properties of melt electrospun PLA fibrous membranes were investigated. In contrast to the pure PLA membranes, the obtained PLA/CNF and PLA/NaCl composite membranes exhibit a finer average fiber diameter and an increased porosity. Also, the oil absorption characteristics and oil/water separation abilities of these fibrous membranes were experimentally studied. In contrast to the 84.55% oil/water separation efficiency of melt‐electrospun PLA fibrous membranes, PLA/CNF exhibits the highest oil/water separation efficiency at 93.54%, whereas PLA/NaCl achieves a maximum efficiency of 90.29%. These findings show the applicability of the eco‐friendly PLA‐based melt electrospun fibrous membrane in the treatment of oily wastewater.

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A facile and fast preparation of robust superhydrophobic brass mesh coated with Cu(OH)2 nanowires by pulse electrodeposition for continuous highly efficient oil/water separation

Cited by 15 publications

References 50 publications

Natural Superhydrophobic Surfaces and Application

Natural Superhydrophobic Surfaces and Application

Laser-Heat Surface Treatment of Superwetting Copper Foam for Efficient Oil–Water Separation

Bio‐degradable fibrous membranes for oil/water separation by melt electrospinning

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